What is the ruling on secretly taking a sum of money from a partner's funds and refraining from informing him, knowing that the partnership was based on a specified profit margin and the losses were borne solely by the partner?

If the lease contract is based solely on a percentage of profits, the majority of scholars consider the contract impermissible due to the ambiguity of the rent. A void contract obligates the employee to receive the customary wage, while all profits belong to the shop owner. As for appropriating the shop owner's money in his absence, it is unlawful according to Islamic law and constitutes treachery. One must repent to Allah and return the right to its owner, and claim legitimate rights by proving them. A believer holds himself accountable before being held accountable by others, so whoever has wronged another should seek forgiveness before the Day of Judgment.